Desk lamp



FIG. 1 is a perspective view of a desk lamp showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof.

FIG. 8 is another perspective view showing the desk lamp; and,

FIG. 9 is a perspective view showing the desk lamp in use.

The broken line environmental showing is for illustrative purpose only and forms no part of the claimed design. 

CLAIM The ornamental design for a desk lamp, as shown and described. 